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class Owner < ActiveRecord::Base
self.primary_key = :owner_id
has_many :pets, -> { order 'pets.name desc' }
has_many :toys, :through => :pets
belongs_to :last_pet, class_name: 'Pet'
scope :including_last_pet, -> {
select(%q[
owners.*, (
select p.pet_id from pets p
where p.owner_id = owners.owner_id
order by p.name desc
limit 1
) as last_pet_id
]).includes(:last_pet)
}
after_commit :execute_blocks
def blocks
@blocks ||= []
end
def on_after_commit(&block)
blocks << block
end
def execute_blocks
blocks.each do |block|
block.call(self)
end
@blocks = []
end
end
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